Company Filing History:
1 out of 789 
1 out of 70 Years Active: 1990
Title: Shigeki Otawara: Innovator in Tissue Plasminogen Activator Production
Introduction
Shigeki Otawara is a notable inventor based in Ootsu, Japan. He has made significant contributions to the field of biotechnology, particularly in the production of tissue plasminogen activator (tPA). His innovative approach has implications for medical treatments, especially in the area of thrombolysis.
Latest Patents
Shigeki Otawara holds a patent for a process for producing tissue plasminogen activator. This invention discloses a method that involves cultivating Escherichia coli, yeast, or mammalian cells that have been genetically modified to include the gene for human tPA through recombinant DNA technology. The process includes the addition of a specific antiplasmin agent during cultivation or purification to prevent the conversion of single-chain tPA into double-chain tPA by proteases present in the medium. He has 1 patent to his name.
Career Highlights
Throughout his career, Shigeki Otawara has worked with prominent companies in the biotechnology sector. He has been associated with Toyo Boseki Kabushiki Kaisha and Daiichi Seiyaku Co., Ltd., where he has contributed to various research and development projects.
Collaborations
Shigeki Otawara has collaborated with notable colleagues in his field, including Ryotaro Kotani and Tsuneo Unuma. Their combined expertise has likely enhanced the impact of their work in biotechnology.
Conclusion
Shigeki Otawara's contributions to the production of tissue plasminogen activator highlight his innovative spirit and dedication to advancing medical science. His work continues to influence the field of biotechnology and offers promising avenues for future research and development.